.header {
  width: 1200px;
  height: 68px;
  margin: 0px auto;
  position: relative;
}
.header .head-logo {
  float: left;
  width: 136px;
  padding: 16px 0px 0px;
}
.header .head-logo .mfw-logo {
  display: inline-block;
  width: 100%;
  height: 39px;
  overflow: hidden;
}
.header .head-logo .mfw-logo img {
  width: 200px;
}
.header .head-left-nav {
  float: left;
  padding: 0px 10px 0px 25px;
}
.header .head-left-nav .head-nav-item {
  float: left;
}
.header .head-left-nav .head-nav-item .nav-item {
  display: inline-block;
  padding: 0px 16px;
  height: 65px;
  line-height: 68px;
  margin:0px;
  cursor: pointer;
  color: #333;
  border-bottom: 3px solid #fff;
  transition: all 0.8s;
}
.header .head-left-nav .head-nav-item .nav-first {
  background-color: #ff9d00;
  color: #fff;
  border-bottom-color: #ff9d00;
}

.header .head-left-nav .head-nav-item .nav-item:hover {
  color: #ffa617;
  border-color: #ffa617;
}
.header .head-left-nav .head-nav-item .nav-first:hover {
  background-color: #ff9d00;
  color: #fff;
  border-bottom: 3px solid #ff9d00;
}

.header .head-left-nav .head-nav-item .mfwzx {
  display: flex;
  line-height: 0px;
  align-items: center;
  width: 75px;
}
.header .head-left-nav .head-nav-item .mfwzx img {
  width: 100%;
}
.header .head-left-nav .nav-sales,
.header .head-left-nav .nav-community {
  float: left;
  position: relative;
}
.header .head-left-nav .nav-sales .community-item,
.header .head-left-nav .nav-community .community-item,
.header .head-left-nav .nav-sales .sales-item,
.header .head-left-nav .nav-community .sales-item {
  display: inline-block;
  height: 66px;
  color: #333;
  padding: 0px 16px 0px 10px;
  position: relative;
  border-top: 2px solid #fff;
  border-bottom: 0px;
  line-height: 63px;
  border-left: 1px solid #fff;
  border-right: 1px solid #fff;
  transition: all 0.8s;
}
.header .head-left-nav .nav-sales #nav-sales,
.header .head-left-nav .nav-community #nav-sales {
  position: absolute;
  top: 68px;
  left: 0px;
  display: none;
  transition: all 0.8s;
  border-top: 1px solid rgba(255, 255, 255, 0.95);
}
.header .head-left-nav .nav-sales #nav-sales li,
.header .head-left-nav .nav-community #nav-sales li {
  cursor: pointer;
  background-color: rgba(255, 255, 255, 0.95);
}
.header .head-left-nav .nav-sales #nav-sales li .sales-li-a,
.header .head-left-nav .nav-community #nav-sales li .sales-li-a {
  display: inline-block;
  width: 110px;
  height: 40px;
  line-height: 40px;
  padding: 0px 10px 0px 20px;
  font-size: 14px;
  color: #333;
}
.header .head-left-nav .nav-sales #nav-sales li:hover,
.header .head-left-nav .nav-community #nav-sales li:hover {
  background-color: #eeeeee;
}
.header .head-left-nav .nav-sales .panel-wrapper,
.header .head-left-nav .nav-community .panel-wrapper {
  position: absolute;
  top: 68px;
  left: 0px;
  width: 300px;
  height: 280px;
  padding-top: 20px;
  z-index: 999;
  background-color: rgba(255, 255, 255, 0.95);
  border-top: 1px solid rgba(255, 255, 255, 0.95);
  display: none;
  transition: all 0.8s;
}
.header .head-left-nav .nav-sales .panel-wrapper .list-left,
.header .head-left-nav .nav-community .panel-wrapper .list-left {
  display: block;
  float: left;
  padding-left: 17px;
}
.header .head-left-nav .nav-sales .panel-wrapper .list-left li,
.header .head-left-nav .nav-community .panel-wrapper .list-left li {
  width: 120px;
  height: 75px;
  float: none;
}
.header .head-left-nav .nav-sales .panel-wrapper .list-left li a,
.header .head-left-nav .nav-community .panel-wrapper .list-left li a {
  font-size: 16px;
  line-height: 32px;
  color: #333;
}
.header .head-left-nav .nav-sales .panel-wrapper .list-left li a:hover,
.header .head-left-nav .nav-community .panel-wrapper .list-left li a:hover {
  color: #ff9d00;
}
.header .head-left-nav .nav-sales .panel-wrapper .list-left li:first-child a,
.header .head-left-nav .nav-community .panel-wrapper .list-left li:first-child a {
  color: #ff9d00;
}
.header .head-left-nav .nav-sales .panel-wrapper .list-right,
.header .head-left-nav .nav-community .panel-wrapper .list-right {
  display: block;
  padding-left: 25px;
  float: left;
}
.header .head-left-nav .nav-sales .panel-wrapper .list-right li,
.header .head-left-nav .nav-community .panel-wrapper .list-right li {
  width: 120px;
  height: 32px;
  float: none;
}
.header .head-left-nav .nav-sales .panel-wrapper .list-right li a,
.header .head-left-nav .nav-community .panel-wrapper .list-right li a {
  line-height: 32px;
  font-size: 14px;
  color: #333;
}
.header .head-left-nav .nav-sales .panel-wrapper .list-right li a:hover,
.header .head-left-nav .nav-community .panel-wrapper .list-right li a:hover {
  color: #ff9d00;
}
.header .head-left-nav .nav-sales .panel-wrapper::after,
.header .head-left-nav .nav-community .panel-wrapper::after {
  content: "";
  display: block;
  clear: both;
}
.header .head-left-nav .nav-sales .community-item::after,
.header .head-left-nav .nav-community .community-item::after,
.header .head-left-nav .nav-sales .sales-item::after,
.header .head-left-nav .nav-community .sales-item::after {
  content: "";
  position: absolute;
  width: 0px;
  height: 0px;
  border: 4px solid transparent;
  border-top-color: #333;
  right: 7px;
  top: 50%;
  margin-top: -3px;
}
.header .head-left-nav .nav-sales:hover .sales-item,
.header .head-left-nav .nav-community:hover .community-item {
  color: #ffa617;
  border-color: #ffa617;
  border-left: 1px solid rgba(0, 0, 0, 0.1);
  border-right: 1px solid rgba(0, 0, 0, 0.1);
}
.header .head-left-nav .nav-sales:hover .sales-item::after,
.header .head-left-nav .nav-community:hover .community-item::after {
  border-top-color: #ffa617;
}
.header .head-left-nav .nav-sales:hover #nav-sales,
.header .head-left-nav .nav-community:hover .panel-wrapper {
  display: block;
  z-index: 999;
  transition-delay: 50ms;
}
.header .head-search {
  position: absolute;
  padding: 16px 0px 15px;
  top: 0px;
  left: 846px;
  transition: left 0.5s ease;
}
.header .head-search input {
  padding: 0px 10px;
  border-radius: 4px;
  border: none;
  outline-color: #ff9d00;
  background-color: #efefef;
  width: 110px;
  height: 36px;
  transition: width 0.5s ease;
}
.header .head-search i {
  position: absolute;
  display: block;
  right: 8px;
  top: 24px;
  width: 20px;
  height: 20px;
  background: url("../images/header-sprites15@2x.png") -30px -110px no-repeat;
  background-size: 200px;
}
.header .head-right-nav {
  float: right;
  padding: 20px 0px;
}
.header .head-right-nav li {
  float: left;
}
.header .head-right-nav li a {
  display: inline-block;
  height: 26px;
  line-height: 30px;
  font-size: 14px;
  color: #ff9d00;
}
.header .head-right-nav li span {
  display: inline-block;
  height: 26px;
  line-height: 28px;
  margin: 0px 10px;
  color: #ff9d00;
}
.header .head-right-nav li:nth-child(4):hover a,
.header .head-right-nav li:nth-child(6):hover a {
  text-decoration: underline;
}
.header .head-right-nav li:nth-child(1) a {
  width: 26px;
  margin-right: 6px;
  background: url("../images/header-sprites15@2x.png") 0 -50px no-repeat;
  background-size: 200px;
}
.header .head-right-nav li:nth-child(2) a {
  width: 26px;
  margin-right: 6px;
  background: url("../images/header-sprites15@2x.png") -30px -50px no-repeat;
  background-size: 200px;
}
.header .head-right-nav li:nth-child(3) a {
  width: 26px;
  margin-right: 8px;
  background: url("../images/header-sprites15@2x.png") 0 -165px no-repeat;
  background-size: 200px;
}
.header .head-right-nav li:nth-child(1):hover a {
  background-position-y: -80px;
}
.header .head-right-nav li:nth-child(2):hover a {
  background-position-y: -80px;
}
.header .head-right-nav li:nth-child(3):hover a {
  background-position-x: -30px;
}
.header::after {
  content: "";
  display: block;
  clear: both;
}
